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This is a list of astronomical organisations around the world.

International Organisations

  • IAU - International Astronomical Union
  • AURA - Association of Universities for Research in Astronomy
  • IOAA - International Olympiad of Astronomy and Astrophysics

Space Agencies

  • NASA - National Aeronautics and Space Administration (USA)
  • ESA - European Space Agency


  • AAVSO - American Association of VAriable Star Observers
  • RAS - Royal Astronomical Society
  • Webb Society